Below is a list of Riva MD zip codes. For your research we have also included Riva Area Code, Time Zone, UTC and the local Anne Arundel County FIPS Code. Each Riva Maryland zip code has a center Longitude / Latitude point (the Riva center is -76.590400695801 / 38.949298858643). For your convenience we have also indicated if that zip code in Riva observes Daylight Savings time.